package com.yy.exception_;

/**
 * chapter12  com.yy.exception_
 * 2023-05-09 22:37
 *
 * @author yy yuyue
 * description : 不可描述
 * @date 2023/5/9 22:37
 */
public class NullPointerException_ {
    public static void main(String[] args) {
        String name = null;//null   "yy"
        System.out.println(name.length());
    }
}
